三层PE管和环氧粉末内防腐管兼容生产线

三层PE管和环氧粉末内防腐管兼容生产线是在三层PE管生产线的基础上改造而成的,主要解决了如下技术问题:将常规使用的喷枪导流体改成导流嘴和枪芯两部分,以适应喷涂不同直径钢管的需要;采用双级回收装置,提高粉末回收率,改善作业环境;加大一次气喷嘴和文丘里泵喷嘴的口径,使出粉量增加20%以上,从而保证涂层喷涂的厚度;设计推枪装置,提高生产的自动化程度。文章还以环氧粉末内防腐管的生产为例,介绍了该生产线的工艺流程和主要技术参数,所生产的环氧粉末内防腐管和三层PE管均达到了有关标准的要求。

Production Line for Both Three Layer PE Pipe and Epoxy Powder Interior Anti-corrosion Pipe

The production line for both three layer PE pipe and epoxy powder inner anticorrosion pipe came from the reformation of an original production line of three layer PE pipe.The main problems to have been solved are as follows,convert the conventional spray gun deflector into two parts of diver-sion nozzle and gun wick to suit for different pipe diameters;adopt two stage retrieval equipment to in-crease powder retrieval rate and improve work environment;enlarge the calibres of gas jet and Venturi pump jet to increase powder output20%above to ensure the spry coating thickness;design gun pushing device to raise automatic production level.Taking the production of epoxy powder inner anticorrosion pipe for example,the paper illustrates the process flow and major technical parameters of the production line.